EP0999390A2 - Soupape à voies multiples pour liquides et son utilisation - Google Patents

Soupape à voies multiples pour liquides et son utilisation Download PDF

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Publication number
EP0999390A2
EP0999390A2 EP99118356A EP99118356A EP0999390A2 EP 0999390 A2 EP0999390 A2 EP 0999390A2 EP 99118356 A EP99118356 A EP 99118356A EP 99118356 A EP99118356 A EP 99118356A EP 0999390 A2 EP0999390 A2 EP 0999390A2
Authority
EP
European Patent Office
Prior art keywords
valve
way valve
longitudinal axis
feed line
flow channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99118356A
Other languages
German (de)
English (en)
Other versions
EP0999390A3 (fr
EP0999390B1 (fr
Inventor
Ferdinand Finkeldei
Walter Schnaus
Paul Tersi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LL Plant Engineering AG
Original Assignee
Lurgi Zimmer GmbH
ZiAG Plant Engineering GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lurgi Zimmer GmbH, ZiAG Plant Engineering GmbH filed Critical Lurgi Zimmer GmbH
Publication of EP0999390A2 publication Critical patent/EP0999390A2/fr
Publication of EP0999390A3 publication Critical patent/EP0999390A3/fr
Application granted granted Critical
Publication of EP0999390B1 publication Critical patent/EP0999390B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
    • F16K11/207—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with two handles or actuating mechanisms at opposite sides of the housing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/877—With flow control means for branched passages
    • Y10T137/87788—With valve or movable deflector at junction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/877—With flow control means for branched passages
    • Y10T137/87877—Single inlet with multiple distinctly valved outlets

Definitions

  • the invention relates to a multi-way valve for liquids, consisting of a supply line and branches from the connection housing Valve bodies, in which each valve body is used as a guide cylinder trained housing with a lateral, in a respective Has outlet opening opening, in which an in Axially movable valve stem with valve head, which in engages closed position of the valve in a valve seat, is arranged as well as on the use of the valve.
  • Multi-way valves for viscous liquids are known.
  • the production and processing of polymer melts or other viscous Liquids usually require the division of the Liquid flow in partial flows, for example if several Processing positions are connected and / or if temporary part of the polymer used chemically modified or other types of products should be processed.
  • the Flow is divided using conventional ones Multi-way valves, however, are often in disadvantageous areas have in which the viscous liquid with reduced Speed flows. It can do so in these low-flow rooms come to a complete interruption of the flow, so that the viscous Liquid partially remains in the dead spaces of the multi-way valve.
  • EP-A 0 615 006 describes a distributor for viscous liquids described, which consists of a liquid line and a plurality of valves connected to the line, each valve being a Housing with a part designed as a guide cylinder, one in an outlet opening opening and an im Guide cylinder between the open and closed positions Valve movable valve spindle with a valve head with mushroom-shaped Includes essay.
  • the individual valves have almost none low-flow zones, but the liquid line must always be with Flush liquid that must be returned and thereby is additionally charged.
  • the invention has for its object a multi-way valve for To create liquids in which the formation of low-flow or flow-dead spaces is largely avoided and in which does not lead to disruptive decomposition processes. This should also be the case if the multi-way valve with highly viscous Liquids is applied.
  • This multi-way valve is mainly used for viscous liquids. Some of these are under a pressure of 25 to 250 bar.
  • the flow cross-section of the feed line is circular or oval in the part further away from the outlet of the feed line.
  • the straight circular cylinder and the fitted, obliquely cut, straight circular cylinder of the valve head attachment of the base valves normally have the same longitudinal axis, which is not absolutely necessary. It is particularly advantageous if the straight circular cylinder and the fitted, obliquely cut, straight circular cylinder consist of a single part and merge into one another without edges.
  • the cross section of the valve head extension of the additional valve body is advantageously circular like that of the valve head; however, a slightly oval shape is also possible.
  • the cavity formed by the curved surface of the valve head extension comprises a gable roof-shaped wedge, the gable of which is arranged perpendicular to the longitudinal axis of the concavely curved cylinder jacket part.
  • a straight cone can also be arranged in the concavely curved cavity.
  • the base of the wedge or cone lies directly on the concavely curved surface of the valve head extension or is preferably connected directly to it. The base is therefore not flat, but adapted to the concave cylindrical curvature.
  • the end faces of the wedge are preferably rounded.
  • the almost straight edges of the base of the wedge can have a slight curvature, so that they form approximately the shape of a zero together with the two opposite, almost partially circular edges.
  • the continuous transition from the diameter D to the diameter d or D A to d A and the continuous transition to the expanded area is to be understood in each case as a transition that takes place without the formation of edges and steps. It has been shown that the formation of flow-free dead spaces in the multi-way valve is largely avoided if the proposed basic valve body and the proposed additional valve body are arranged in the manner according to the invention.
  • the multi-way valve is particularly suitable for highly viscous liquids, such as polymer melts.
  • the arrangement of the flow channel according to the invention favors the formation of a continuously guided flow inside the multi-way valve, so that an additional flushing effect is realized.
  • a preferred embodiment of the invention is that the Flow channel is arranged centrally in the longitudinal direction of the feed line and two opposite auxiliary valve bodies at the same height with the Basic valve bodies and perpendicular to these and each perpendicular to Longitudinal axis of the feed line are arranged.
  • the central arrangement of the Flow channel with simultaneous arrangement of all valve bodies in same height perpendicular to the longitudinal axis of the supply line allows the same Flow conditions in front of the respective valve heads each Valve stem. This is particularly beneficial if it is It is necessary to use highly viscous liquids in exactly the same size To split partial streams, as is the case with polymer melts, the spinning equipment should be fed, the case is.
  • the flow channel is arranged eccentrically and only one additional valve body perpendicular to the base valve bodies along the longitudinal axis of the supply line to the flow channel opposite side of the connection housing is arranged.
  • Under the eccentric arrangement is an inclined to the longitudinal axis of the feed line Arrangement or an arrangement to be understood with respect to the Longitudinal axes offset parallel to the center of the supply line, avoiding it of edges and steps.
  • the eccentric arrangement of the Flow channel enables a tangential inflow of the Liquids to the respective base valve bodies, what the avoidance from low-flow rooms favored by additional rinsing effect.
  • the an additional valve body is in this case on the flow channel opposite side arranged what the formation of a favors continuous flow to this valve.
  • the flow channel is arranged eccentrically and just an additional valve body in the same height with the Basic valve bodies perpendicular to the longitudinal axis of the supply line on the Flow channel side of the connector housing is arranged.
  • the eccentric arrangement of the flow channel also enables this an advantageous tangential inflow of liquid to all Valve bodies.
  • Another preferred embodiment of the invention is that the angle ⁇ between each of the two sides of the flattened part the supply line and the longitudinal axis of the supply line in the area of almost straight edges is 5 to 25 °. In this way, the Liquids are supplied to the flow channel in a particularly streamlined manner, what the setting of optimal flow conditions inside the Multi-way valve enables.
  • the flow channel has a constant length Has flow cross-section and inclined to the longitudinal axis of the feed line runs, the angle of inclination ⁇ between the longitudinal axis of the inclined flow channel and the longitudinal axis of the feed line 0.1 to 45 ° is.
  • the tangential inflow becomes at this angle of inclination ⁇ of liquids to the base valve bodies, which increases advantageous to the flow conditions inside the Multi-way valve affects.
  • the flow channel has one Inclination angle ⁇ from 1 to 8 °, there is a tangential inflow of liquids even with different sizes of the basic valves guaranteed.
  • valve body laterally offset to the supply line, so that the Longitudinal axes of the valve spindles with the longitudinal axis of the supply line in each case have no intersection. In this way, the Fix the valve body relatively easily even when the operating pressure in the multi-way valve is below 25 bar and only a relatively low one Wall thickness of the valve body is available.
  • the angle of inclination ⁇ between the longest side line and the Cover surface of the obliquely cut, straight circular cylinder of the Basic valve head attachment is 30 to 60 °. This will make the Flow conditions with the base valve open within the Valve housing evenly and with one open and one closed base valve within the connection housing favors.
  • the length of the area of the valve spindles with a reduced diameter d or d A is 0.3 to 1.2 times the diameter of the lateral outlet opening of the respective valve. In this way, in connection with the expanded area of the valve housing, uniform flow conditions can be achieved over the entire cross section within the housing and the outlet opening.
  • the expanded diameter of the as a guide cylinder trained housing 1.1 to 2 times the not expanded Diameter of the housing designed as a guide cylinder.
  • the length of the expanded area of the as a guide cylinder trained housing is 1 to 1.1 times the Diameter of the outlet opening of the valve housing.
  • the flattened parts of the supply line at the outlet each in the direction of flow an inwardly directed part-circle Have curvature.
  • the flow cross-section has Leaving the lead in the form of a dog bone. In this way becomes the direction of flow to the valve heads of the base valve bodies reinforced, which also the avoidance of low-flow rooms favored.
  • the height of the gable roof-shaped wedge or cone is 0.5 to 0.9 times the height of the cavity caused by the concave curvature of the Cylinder surface of the valve head extension of the additional valve body is formed. This measure avoids the formation of product jams in immediate proximity of the valve heads in the respective due to the curvature of the cylindrical surface formed cavity.
  • the gable edge of the Wedge or the tip of the cone, which is the valve head of each Additional valve body is facing away, rounded. This measure also reinforces the smoothness of the flow.
  • valve seat has a wedge angle ⁇ of 3 to 5 ° having.
  • the throughput of the liquids can be almost Set proportional to the stroke of the respective valve spindle. This is particularly advantageous if those leaving the multi-way valve Liquids must be passed on in precisely dosed quantities.
  • the invention also relates to the use of the Multi-way valve for dividing a liquid, in particular a polymer melt in partial flows.
  • dividing one Polymer melt comes in partial flows by means of known multi-way valves it usually causes damage to the polymer again and again Decomposition products that form in low-flow rooms.
  • This Damage can be caused by using the invention Avoid multi-way valve, even if the multi-way valve is heated is.
  • the heating can be done by arranging the multi-way valve in a heating bath done with a liquid heating medium is acted upon.
  • it is also possible to use the liquid heating medium to let it flow along the outside of the multi-way valve for example, by the multi-way valve in a corresponding pipeline for the Heating medium is arranged.
  • FIG. 1 the multi-way valve according to the invention with the Basic valve bodies (2, 3) shown in section. On the presentation additional valve bodies have been omitted here.
  • the basic valve body (2, 3) are exactly opposite to each other at the same height Longitudinal axis of the feed line (1) arranged.
  • the supply line (1) opens with their exit (1 ') on the almost straight edges (7) of the one below arranged flow channel (24) between the outlet (1 ') of the Supply line (1) and entry to the base valve bodies (2, 3) is arranged.
  • the wall (8) of the feed line (1) is directly connected to the Connection housing (9) connected.
  • the basic valve bodies (2, 3) are made each made from a guide cylinder Valve housing (10), which is usually connected directly to the connection housing (9) connected is.
  • connection housing (9) and the valve housing (10) designed as a guide cylinder together as To produce a single part, as shown here.
  • the valve stem (13) of a basic valve body (3) is also dot-dashed in open state of the multi-way valve shown.
  • On everyone Valve head (12) of each valve spindle (13) of the basic valve body (2, 3) is an attachment (17, 18) in the form of a straight Circular cylinder (17) with an attached, straight cut, crooked Circular cylinder (18) arranged, the longest side line (19) of the obliquely cut, straight circular cylinder (18) of the feed line (1) is turned away.
  • the valve head attachment (17, 18) is in advantageously formed as a single part, in which the straight Circular cylinder (17) and the patch, cut obliquely, straight Merge circular cylinder (18) into each other without edges.
  • the essay (17, 18) of the valve head (12) of the respective base valve body (2, 3) is with the obliquely cut, straight circular cylinder (18) in the closed State of the base valve directly under the flow channel (24) on the Lower part (20) of the connection housing (9) positioned.
  • the diameter d of the area (13 ') adjoining the valve heads (12) Valve spindles (13) is 25 to 90% of the diameter D of the Valve heads (12), the transition from diameter D to Diameter d runs continuously, and the area (13 ') in open state of the multi-way valve in the area of Outlet opening (4) of the respective base valve, which in a Output line (5) opens, is positioned. That as a guide cylinder trained housing (10) is in each case on the outlet opening (4) opposite side expanded, the transition (15) to the extended area (14) runs continuously. In the end area (16) the enlarged area (14) of the housing (10) limited.
  • Fig. 2 the multi-way valve with the base valve bodies (2, 3) according to section C-C in Fig. 1, with the representation of the Additional valve body was again dispensed with.
  • the feed line (1) is in the direction their exit (1 ') parallel to the longitudinal axes of the Base valve body (2, 3) flattened on both sides (22) simultaneous gradual tapering of the cross-section.
  • the Flow cross section is thus at the outlet (1 ') of the feed line (1) two opposite almost straight edges (7) and by two Edges (21) running on the opposite side almost in the shape of a partial circle are delimited.
  • the multi-way valve is in three configurations according to Section B-B in Fig. 1 with a straight and inclined flow channel (24) shown.
  • the Flow channel (24) not inclined to the longitudinal axis of the feed line (1).
  • the Angle ⁇ between each of the two flattened sides (22) of the Supply line (1) and the longitudinal axis of the supply line (1) in the area of almost straight edges (7) is 5 to 25 °.
  • the flow channel (24) has a constant flow cross-section over its length and runs in the center and right configuration to the longitudinal axis of the Supply line (1) inclined.
  • the angle of inclination ⁇ between the longitudinal axis of the inclined flow channel (24) and the longitudinal axis of the feed line (1) is 0.1 to 45 °.
  • the angle of inclination is preferred set in the range between 1 and 8 °.
  • the liquids will thus passed through the flow channel (24) in such a way that it flow tangentially to the base valve bodies. Can be reinforced this tangential inflow by an additional with respect to the Slightly offset longitudinal axes parallel to the center of the feed line (1) Arrangement of the flow channel (24) (not shown).
  • an additional valve body (26 ') in the direction of the longitudinal axis of the feed line (1) on the the supply line (1) facing away from the connector housing is.
  • Fig. 4 is a flow cross section at the outlet (1 ') Supply line (1) with and without inwardly directed pitch circle Arches (23) shown. If part-circle-like curvatures (23) are provided, the flow cross section thus has the shape of a Dog bone.
  • the ratio of the distances a to b is approximately 1: 3.
  • Fig. 5 is the section through a formed as a guide cylinder Valve housing (10) according to section A-A in Fig. 1 shown.
  • Valve outlet opening (4) opposite side is as Guide cylinder trained valve housing (10) expanded.
  • the Transition (15) to the expanded area (14) runs here continuous (not shown).
  • the valve outlet opening (4) opens directly into the outlet pipe (5).
  • valve head extension (12a) has a concave curved front surface Cylinder jacket part and includes a center perpendicular to the longitudinal axis the gable roof-shaped wedge (11) of the cylinder jacket part, the base of which faces the valve head (12a) and the concave Curvature of the cylinder jacket part is adapted in the shape.
  • FIG. 7 is the multi-way valve according to section D-D in FIG. 6 shown.
  • FIG. 8 is a constructive variant of the multi-way valve according to Section B-B shown in Fig. 1. It is provided that the Flow channel (24) centrally in the longitudinal direction of the feed line (1) is arranged and two opposing additional valve bodies (25, 26) at the same height as the base valve bodies (2, 3) (not shown) are arranged perpendicular to the longitudinal axis of the feed line (1).
  • the Front surface of the cylindrical valve head extension (12a) of the additional valve body (25, 26) is in the form of a concave curve Cylinder jacket part formed and includes a perpendicular to the center Longitudinal axis of the cylinder jacket part arranged gable roof-shaped wedge (11).
  • the base of the wedge (11) faces the valve and lies directly on the concavely curved cylinder jacket part.
  • Wedge (11) and valve head extension (12a) can also advantageously as Item be made.
  • the height of the gable roof wedge (11) is advantageously 0.5 to 0.9 times the amount of through the curvature of the formed cavity of the valve head extension (12a).
  • valve 9 is the multi-way valve according to section E-E in FIG. 8 shown.
  • the valve head extension (12a) is concavely curved trained and has the shape of a cylinder jacket part. Is in the middle perpendicular to the longitudinal axis of the cylinder jacket part gable roof-shaped wedge (11) arranged by the curved surface is included. The curved surface runs when closed Auxiliary valve flush with the inside of the connection housing (9).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Multiple-Way Valves (AREA)
  • Valve Housings (AREA)
  • Devices For Dispensing Beverages (AREA)
  • External Artificial Organs (AREA)
EP99118356A 1998-11-05 1999-09-16 Soupape à voies multiples pour liquides et son utilisation Expired - Lifetime EP0999390B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19850921A DE19850921C2 (de) 1998-11-05 1998-11-05 Mehrwege-Ventil für Flüssigkeiten
DE19850921 1998-11-05

Publications (3)

Publication Number Publication Date
EP0999390A2 true EP0999390A2 (fr) 2000-05-10
EP0999390A3 EP0999390A3 (fr) 2001-11-21
EP0999390B1 EP0999390B1 (fr) 2004-04-14

Family

ID=7886737

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99118356A Expired - Lifetime EP0999390B1 (fr) 1998-11-05 1999-09-16 Soupape à voies multiples pour liquides et son utilisation

Country Status (5)

Country Link
US (1) US6148861A (fr)
EP (1) EP0999390B1 (fr)
AT (1) ATE264472T1 (fr)
DE (2) DE19850921C2 (fr)
ES (1) ES2218921T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6474363B1 (en) * 2001-03-30 2002-11-05 Perry Stephenson Coupler and valve assembly
US7252457B2 (en) * 2004-07-13 2007-08-07 Aco Polymer Products, Inc. Channel installation device
JP7116735B2 (ja) * 2017-02-24 2022-08-10 メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング 水浄化および配分システムおよび方法
US11815187B2 (en) * 2022-01-26 2023-11-14 Maag Germany Gmbh 3-port valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0615006A1 (fr) 1993-03-12 1994-09-14 Zimmer Aktiengesellschaft Distributeur pour liquides visqueux à décharge multiple et réglable

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1550353A1 (de) * 1966-04-21 1969-09-25 Philipp Kreis Drucktasten-Schieberventil
DD131768A1 (de) * 1976-12-17 1978-07-19 Wolfgang Weinhart Doppelventil fuer polymere kunststoffschmelzen
US4081231A (en) * 1976-12-23 1978-03-28 Mobil Oil Corporation Flow distribution valve for dual thermoplastic tube extrusion
GB2112506A (en) * 1981-12-30 1983-07-20 Shell Int Research Distributing valve
JPS5999176A (ja) * 1982-08-11 1984-06-07 Asuka Kogyo Kk 切換弁
DE29805570U1 (de) * 1998-03-27 1998-07-16 Schuf Chemieventile Vertriebs Mehrwege-Polymerventil

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0615006A1 (fr) 1993-03-12 1994-09-14 Zimmer Aktiengesellschaft Distributeur pour liquides visqueux à décharge multiple et réglable

Also Published As

Publication number Publication date
DE59909160D1 (de) 2004-05-19
ES2218921T3 (es) 2004-11-16
EP0999390A3 (fr) 2001-11-21
EP0999390B1 (fr) 2004-04-14
ATE264472T1 (de) 2004-04-15
US6148861A (en) 2000-11-21
DE19850921A1 (de) 2000-05-18
DE19850921C2 (de) 2003-09-04

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